Method and device for transmitting signal, and storage medium

ABSTRACT

The present disclosure relates to a method and device for receiving a measurement reference signal. The method includes: receiving control signaling; and receiving the measurement reference signal according to the control signaling; wherein the first set of time domain symbols comprise M symbols, where M is a natural number; the measurement reference signal is in a measurement reference signal resource, and the measurement reference signal resource comprises at least one measurement reference signal port; wherein the start time domain symbol set comprises time domain symbols with index number 0 to index number A in the second time unit, wherein A is a non-negative integer which is smaller than or equal to 3.

CROSS REFERENCE

The present application is a continuing application of InternationalApplication No. PCT/CN2016/104792, filed on Nov. 4, 2016, which is basedupon and claims priority to Chinese Patent Application No.201610877938.0, filed on Sep. 30, 2016, and the entire contents thereofare incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the field of communication technology,and in particular to a method and a device for transmitting a signal,and a storage medium.

BACKGROUND

The fifth generation mobile communication system—the new generationwireless technology (5G-NR) tends to support non-periodic measurementsignals, and it is desirable to complete trigger signaling of ameasurement reference signal, transmission of the measurement referencesignal, and feedback information based on the measurement referencesignal in a time period as short as possible, even in the same timeunit. In this case, an overhead of triggering signaling becomes aproblem.

Since high-frequency communication is core technical means for 5G-NRcommunication, the above measurement process requires furtherconsideration of high-frequency communication. The distinguishingfeature of high-frequency communication is beam-based transmission, andconsidering the cost problem, the high-frequency communication tends tobe based on on hybrid beam transmission. That is, in this case, theradio frequency also has a beam direction, instead of covering the wholecell by the radio frequency beam. However, since one radio frequencylink can only emit one radio frequency beam in an Orthogonal FrequencyDivision Multiplexing (OFDM) symbol, when the measurement referencesignal conflict with the radio frequency beam corresponding to the datain the same time unit, on the one hand, it is necessary to considertransmitting the measurement reference signal and the control signalingcorresponding to the data through a time-division resource when thecontrol channel is used for transmission, and on the other hand, it isnecessary to consider how to multiplex the measurement of thecorresponding control signaling and the measurement reference signal.Thus, how to improve resource utilization while reducing complexity of abase station is the problem that needs to be solved now.

SUMMARY

In order to solve the above technical problem, embodiments of thepresent disclosure provide a method and an apparatus for transmitting asignal, and a storage medium.

An embodiment of the present disclosure provides a method fortransmitting a signal, including:

-   -   configuring a measurement reference signal to occupy a frequency        domain resource in a first set of time domain symbols where a        control channel is located; and transmitting configuration        information of the measurement reference signal through control        signaling; and/or transmitting the control channel in a second        set of time domain symbols where the measurement reference        signal is located; and/or    -   transmitting configuration information of the measurement        reference signal through control signaling, wherein in the        configuration information of the measurement reference signal, a        range of indices of time domain symbols occupied by the        measurement reference signal includes one or more start time        domain symbols in a second time unit, where the second time unit        is a time unit for transmitting the measurement reference        signal; and    -   wherein the set of time domain symbols includes M symbols, where        M is a natural number; the measurement reference signal is a        measurement reference signal port or a measurement reference        signal resource, and the measurement reference signal resource        includes at least one measurement reference signal port.

In the solution, the configuration information includes at least one ofthe following information:

-   -   an index of a time domain symbol occupied by the measurement        reference signal in the first set of time domain symbols, an        index of a frequency domain block of the measurement reference        signal in the time domain symbol; information indicating whether        to transmit the measurement reference signal; information        indicating a transmission pattern of the measurement reference        signal in the frequency domain block; information indicating        whether to report channel state information CSI and information        indicating whether to report the time-frequency resource where        the CSI is located; configuration information of the first set        of time domain symbols; and configuration information of the        second set of time domain symbols, and    -   one symbol includes MF frequency domain blocks, where MF is an        integer greater than one.

In the solution, at least one of the following information of themeasurement reference signal is set with a receiving end: an index of asymbol occupied by the measurement reference signal in the first set oftime domain symbols, an index of a frequency domain block of themeasurement reference signal in the time domain symbol; informationindicating whether to transmit the measurement reference signal;information indicating a transmission pattern of the measurementreference signal in the frequency domain block; and informationindicating whether to report CSI and information indicating whether toreport the time-frequency resource where the CSI is located.

In the solution, in a time domain symbol, the control channel and themeasurement reference signal are frequency division multiplexed.

In the solution, the frequency division multiplexing satisfies at leastone of the following features:

-   -   frequency division multiplexing of a combed structure is        employed;    -   a number of the frequency domain blocks occupied by the control        channel is greater than a number of the frequency domain blocks        occupied by the measurement reference signal;    -   an index set of the frequency domain blocks that can be occupied        by the measurement reference signal is a subset of an index set        of the frequency domain blocks that can be occupied by the        control channel;    -   the index set of the frequency domain blocks that can be        occupied by the control channel includes all of the frequency        domain blocks in the symbol; and    -   the index set of the frequency domain blocks occupied by the        control channel and the index set of the frequency domain block        occupied by the measurement reference signal are set with the        receiving end.

In the solution, the frequency domain block of the measurement referencesignal in one symbol is larger than the frequency domain blockcorresponding to the control channel; and

-   -   the frequency domain block of the measurement reference signal        in one symbol includes a frequency domain block corresponding to        NF control channels, where NF is an integer greater than 1.

In the solution, the configuration information satisfies at least one ofthe following features:

-   -   one measurement reference signal port occupies a resource in NR        symbols in the first set of time domain symbols, 1≤NR≤M;    -   one measurement reference signal resource occupies a resource in        NR1 symbols in the first set of time domain symbols, 1≤NR1≤M;    -   the control channel occupies MC symbols in the second set of        time domain symbols in which the measurement reference signal is        located, 1≤MC≤MCT, where the set of time domain symbols in which        the measurement reference signal is located includes MCT time        domain symbols;    -   the one measurement reference signal resource occupies a        resource in the first set of time domain symbols, and does not        occupy a resource outside the first set of time domain symbols;    -   the one measurement reference signal port occupies a part of the        frequency domain block resource in the time domain symbol; and    -   the control signaling is transmitted in the control channel.

In the solution, NR is 1 and NR1 is 1.

In the solution, one measurement reference signal resource occupiesresources in the first set of time domain symbols and a resource outsidethe first set of time domain symbols; and

-   -   one measurement reference signal port occupies resources in the        first set of time domain symbols and a resource outside the        first set of time domain symbols.

In the solution, the second set of time domain symbols satisfies atleast one of the following features:

-   -   the second set of time domain symbols is at an end position of a        downlink transmission domain of a first time unit;    -   x time domain symbols are between a start symbol of the second        set of time domain symbols and a start position of the first        time unit, where x is a natural number greater than 0; and    -   the time domain symbols in the second set of time domain symbols        are consecutive; and    -   the first time unit is a time unit where the second set of time        domain symbols is located.

In the solution, the first set of time domain symbols and/or the secondset of time domain symbols appear in a set time unit, and themeasurement reference signal cannot be transmitted on the first set oftime domain symbols in an unset time unit, and/or the control channelcannot be transmitted on the second set of time domain symbols in anunset time unit; and

-   -   the index of the set time unit is sent to the receiving end by        signaling.

In the solution, in the configuration information of the measurementreference signal, the index range of the time domain symbols occupied bythe measurement reference signal includes one or more start time domainsymbols of the second time unit;

-   -   the second time unit is a time unit for transmitting the        measurement reference signal; and    -   the set of time domain symbols occupied by the control channel        in the second set of time domain symbols is a subset of the        second set of time domain symbols.

In the solution, the control channel satisfies at least one of thefollowing features:

-   -   a minimum mapping unit of the control channel is a comb-shaped        frequency domain block in the one symbol; and    -   a minimum mapping unit of the control channel is a subcarrier        group in a comb-shaped frequency domain block in the one symbol,        wherein one comb-shaped frequency domain block includes more        than one subcarrier group.

In the solution, one time domain symbol is one OFDM symbol;

-   -   the control channel is a downlink control channel;    -   the time unit is one subframe; and    -   the control signaling is proprietary control signaling.

An embodiment of the present disclosure also provides an apparatus fortransmitting a signal, including:

-   -   a configuring unit configured to configure a measurement        reference signal to occupy a frequency domain resource in a        first set of time domain symbols where a control channel is        located; and    -   a transmitting unit configured to transmit configuration        information of the measurement reference signal through control        signaling; and/or transmit the control channel in a second set        of time domain symbols where the measurement reference signal is        located; and/or transmit configuration information of the        measurement reference signal through control signaling, wherein        in the configuration information of the measurement reference        signal, a range of indices of time domain symbols occupied by        the measurement reference signal includes one or more start time        domain symbols in a second time unit, where the second time unit        is a time unit for transmitting the measurement reference        signal; and    -   the set of time domain symbols includes M symbols, where M is a        natural number; the measurement reference signal is a        measurement reference signal port or a measurement reference        signal resource, and the measurement reference signal resource        includes at least one measurement reference signal port.

In the solution, the configuration information includes at least one ofthe following information:

-   -   an index of a time domain symbol occupied by the measurement        reference signal in the first set of time domain symbols, an        index of a frequency domain block of the measurement reference        signal in the time domain symbol; information indicating whether        to transmit the measurement reference signal; information        indicating a transmission pattern of the measurement reference        signal in the frequency domain block; information indicating        whether to report channel state information CSI and to report        the time-frequency resource where the CSI is located;        configuration information of the first set of time domain        symbols; and configuration information of the second set of time        domain symbols, and    -   one symbol includes MF frequency domain blocks, where MF is an        integer greater than one.

In the solution, at least one of the following information of themeasurement reference signal is set with a receiving end: an index of asymbol occupied by the measurement reference signal in the first set oftime domain symbols, an index of a frequency domain block of themeasurement reference signal in the time domain symbol; informationindicating whether to transmit the measurement reference signal;information indicating a transmission pattern of the measurementreference signal in the frequency domain block; and informationindicating whether to report CSI and to report the time-frequencyresource where the CSI is located.

In the solution, in a time domain symbol, the control channel and themeasurement reference signal are frequency division multiplexed.

In the solution, the frequency division multiplexing satisfies at leastone of the following features:

-   -   frequency division multiplexing of a combed structure is        employed;    -   a number of the frequency domain blocks occupied by the control        channel is greater than a number of the frequency domain blocks        occupied by the measurement reference signal;    -   an index set of the frequency domain blocks that can be occupied        by the measurement reference signal is a subset of an index set        of the frequency domain blocks that can be occupied by the        control channel;    -   the index set of the frequency domain blocks that can be        occupied by the control channel includes all of the frequency        domain blocks in the symbol; and    -   the index set of the frequency domain blocks occupied by the        control channel and the index set of the frequency domain block        occupied by the measurement reference signal are set with the        receiving end.

In the solution, the frequency domain block of the measurement referencesignal in one symbol is larger than the frequency domain blockcorresponding to the control channel; and

-   -   the frequency domain block of the measurement reference signal        in one symbol includes a frequency domain block corresponding to        NF control channels, where NF is an integer greater than 1.

In the solution, the configuration information satisfies at least one ofthe following features:

-   -   one measurement reference signal port occupies a resource in NR        symbols in the first set of time domain symbols, 1≤NR≤M;    -   one measurement reference signal resource occupies a resource in        NR1 symbols in the first set of time domain symbols, 1≤NR1≤M;    -   the control channel occupies MC symbols in the second set of        time domain symbols in which the measurement reference signal is        located, 1≤MC≤MCT, where the set of time domain symbols in which        the measurement reference signal is located includes MCT time        domain symbols;    -   the one measurement reference signal resource occupies a        resource in the first set of time domain symbols, and does not        occupy a resource outside the first set of time domain symbols;    -   the one measurement reference signal port occupies a part of the        frequency domain block resource in the time domain symbol; and    -   the control signaling is transmitted in the control channel.

In the solution, NR is 1 and NR1 is 1.

In the solution, one measurement reference signal resource occupiesresources in the first set of time domain symbols and a resource outsidethe first set of time domain symbols; and

-   -   one measurement reference signal port occupies resources in the        first set of time domain symbols and a resource outside the        first set of time domain symbols.

In the solution, the second set of time domain symbols satisfies atleast one of the following features:

-   -   the second set of time domain symbols is at an end position of a        downlink transmission domain of a first time unit;    -   x time domain symbols are between a start symbol of the second        set of time domain symbols and a start position of the first        time unit, where x is a natural number greater than 0; and    -   the time domain symbols in the second set of time domain symbols        are consecutive; and    -   the first time unit is a time unit where the second set of time        domain symbols is located.

In the solution, the first set of time domain symbols and/or the secondset of time domain symbols appear in a set time unit, and themeasurement reference signal cannot be transmitted on the first set oftime domain symbols in an unset time unit (or a time unit which is notset or designated), or the control channel cannot be transmitted on thesecond set of time domain symbols in an unset time unit; and

-   -   the index of the set time unit is sent to the receiving end by        signaling.

In the solution, in the configuration information of the measurementreference signal, the index range of the time domain symbols occupied bythe measurement reference signal includes one or more start time domainsymbols of the second time unit;

-   -   the second time unit is a time unit for transmitting the        measurement reference signal.

In the solution, the set of time domain symbols occupied by the controlchannel in the second set of time domain symbols is a subset of thesecond set of time domain symbols.

In the solution, the control channel satisfies at least one of thefollowing features:

-   -   a minimum mapping unit of the control channel is a comb-shaped        frequency domain block in the one symbol; and    -   a minimum mapping unit of the control channel is a subcarrier        group in a comb-shaped frequency domain block in the one symbol,        wherein one comb-shaped frequency domain block includes more        than one subcarrier group.

In the solution, one time domain symbol is one OFDM symbol;

-   -   the control channel is a downlink control channel;    -   the time unit is one subframe; and    -   the control signaling is proprietary control signaling.

An embodiment of the present disclosure also provides a storage mediumhaving stored therein a computer program configured to perform themethod for transmitting a signal.

In the technical solution of the embodiments of the present disclosure,a measurement reference signal is configured to occupy a frequencydomain resource in a first set of time domain symbols where a controlchannel is located; the configuration information of the measurementreference signal is sent by control signaling; the measurement referencesignal is sent in a set N time units; and/or the control channel istransmitted in a second set of time domain symbols where the measurementreference signal is located; and/or configuration information of themeasurement reference signal is transmitted through control signaling,wherein in the configuration information of the measurement referencesignal, a range of indices of time domain symbols occupied by themeasurement reference signal includes one or more start time domainsymbols in a second time unit, where the second time unit is a time unitfor transmitting the measurement reference signal; the set of timedomain symbols includes M symbols, where M is a natural number; and themeasurement reference signal is a measurement reference signal port or ameasurement reference signal resource, and the measurement referencesignal resource includes at least one measurement reference signal port.The technical solutions provided by the present disclosure can solve theproblem of waste of resources caused by signaling notification andreference signal time division transmission when the channel measurementsignal is dynamically triggered. In addition, the present disclosure canincrease the processing time for terminals to process the measurementreference signal, so that the terminals can feed back the measurementresults quickly, and the terminals can even report measurement resultsin the current time unit. Moreover, the present disclosure cancontemplate an application scenario: a resource pool of measurementreference signals is configured at a high layer. However, since themeasurement reference signal is transmitted on demand, in this case, themeasurement reference signal transmitted on demand in the resource poolof measurement reference signals can be notified. Thus, the presentdisclosure can realize that the measurement reference signal is sent ondemand at the transmitting end while effectively improving the resourceutilization of the triggered measurement reference signal.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1a is a first diagram showing an example in which a measurementreference signal and control signaling are transmitted on the samesymbol;

FIG. 1b is a second diagram showing an example in which a measurementreference signal and control signaling are transmitted on the samesymbol;

FIG. 1c is a first diagram showing an example in which a measurementreference signals and control signaling are transmitted on the samesymbol, and the measurement reference signal occupies a resource outsidethe set of time domain symbols;

FIG. 1d is a second diagram showing an example in which a measurementreference signals and control signaling are transmitted on the samesymbol, and the measurement reference signal occupies a resource outsidethe set of time domain symbols;

FIG. 1e is a third diagram showing an example in which a measurementreference signals and control signaling are transmitted on the samesymbol, and the measurement reference signal occupies a resource outsidethe set of time domain symbols;

FIG. 1f is a fourth diagram showing an example in which a measurementreference signals and control signaling are transmitted on the samesymbol, and the measurement reference signal occupies a resource outsidethe set of time domain symbols;

FIG. 2 is a diagram showing an example of trigger signaling fornotifying a measurement reference signal and a measurement referencesignal are transmitted in a time division transmission manner;

FIG. 3a is a first diagram showing an example in which differentfrequency domain blocks in a comb-shaped structure are formed on thesymbol;

FIG. 3b is a second diagram showing an example in which differentfrequency domain blocks in a comb-shaped structure are formed on thesymbol;

FIG. 4a is a diagram showing an example in which the set of time domainsymbols occupies a immediately adjacent downlink control domain in onetime unit;

FIG. 4b is a diagram showing an example in which the set of time domainsymbols occupies a middle symbol in one time unit;

FIG. 4c is a first diagram showing an example in which the set of timedomain symbols occupies an end position in a downlink transmissiondomain in one time unit;

FIG. 4d is a first diagram showing an example in which the set of timedomain symbols occupies an end position in a downlink transmissiondomain in one time unit;

FIG. 4e is a diagram showing an example in which the set of time domainsymbols in a configured T time units;

FIG. 4f is a diagram showing an example in which a radio frequency beamof a downlink control domain is different from a radio frequency beam ofa measurement reference signal;

FIG. 5a is a first diagram showing an example in which the set of timedomain symbols occupies the entire downlink transmission domain of onetime unit;

FIG. 5b is a second diagram showing an example in which the set of timedomain symbols occupies the entire downlink transmission domain of onetime unit;

FIG. 5c is a third diagram showing an example in which the set of timedomain symbols occupies the entire downlink transmission domain of onetime unit;

FIG. 5d is a diagram showing an example in which time domain symbolsthat may be occupied by the control channel are a subset of time domainsymbols that may be occupied by the measurement reference signal;

FIG. 6 is a diagram showing an example in which the first controlinformation and the measurement reference signal are not in one timeunit;

FIG. 7 is a diagram showing an example in which a measurement result isobtained taking a control channel demodulation reference signal as ameasurement reference signal in one measurement period;

FIG. 8 is a diagram showing an example in which symbols in the controlchannel are polled in a combed manner to obtain different frequencydomain blocks;

FIG. 9 is a flowchart of a method for transmitting a signal according toan embodiment of the present disclosure;

FIG. 10 is a block diagram of a device for transmitting a signalaccording to an embodiment of the present disclosure.

FIG. 11a is a diagram of showing an example in which an uplink controlchannel and an uplink measurement reference signal occupy the same timedomain symbol in a frequency division multiplexing manner;

FIG. 11b is a diagram of showing an example in which an uplink controlchannel and an uplink measurement reference signal occupy the same timedomain symbol in a combed frequency division multiplexing manner; and

FIG. 12 is a diagram showing an example in which the measurementreference signal is transmitted over a resource outside the controlchannel region.

DETAILED DESCRIPTION

In order to understand the features and technical contents of theembodiments of the present disclosure in more detail, the embodiments ofthe present disclosure are described in detail below with reference tothe accompanying drawings. The accompanying drawings are forillustrative purposes only and are not intended to limit the embodimentsof the present disclosure.

FIG. 9 is a flowchart of a method for transmitting a signal according toan embodiment of the present disclosure. As shown in FIG. 9, the methodfor transmitting the signal includes the following steps.

In step 901, a measurement reference signal is configured to occupy afrequency domain resource in a first set of time domain symbols where acontrol channel is located.

In step 902, configuration information of the measurement referencesignal is transmitted through control signaling; and/or the controlchannel is transmitted in a second set of time domain symbols where themeasurement reference signal is located.

The set of time domain symbols includes M symbols, where M is a naturalnumber; the measurement reference signal is a measurement referencesignal port or a measurement reference signal resource, and themeasurement reference signal resource includes at least one measurementreference signal port.

The measurement reference signal is transmitted in a set N time units.

In the embodiment of the present disclosure, the configurationinformation includes at least one of the following information:

-   -   an index of a time domain symbol occupied by the measurement        reference signal in the first set of time domain symbols, an        index of a frequency domain block of the measurement reference        signal in the time domain symbol; information indicating whether        to transmit the measurement reference signal; information        indicating a transmission pattern of the measurement reference        signal in the frequency domain block; information indicating        whether to report channel state information (CSI) and        information indicating whether to report the time-frequency        resource where the CSI is located; configuration information of        the first set of time domain symbols; and configuration        information of the second set of time domain symbols.

One symbol includes MF frequency domain blocks, where MF is an integergreater than one.

In the embodiment of the present disclosure, at least one of thefollowing information of the measurement reference signal is set withthe receiving end: an index of a symbol occupied by the measurementreference signal in the first set of time domain symbols, an index of afrequency domain block of the measurement reference signal in the timedomain symbol; information indicating whether to transmit themeasurement reference signal; information indicating a transmissionpattern of the measurement reference signal in the frequency domainblock; and information indicating whether to report CSI and informationindicating whether to report the time-frequency resource where the CSIis located.

In an embodiment of the present disclosure, in a time domain symbol, thecontrol channel and the measurement reference signal are frequencydivision multiplexed.

In an embodiment of the present disclosure, the frequency divisionmultiplexing satisfies at least one of the following features:

-   -   frequency division multiplexing of a combed structure is        employed;    -   a number of the frequency domain blocks occupied by the control        channel is greater than a number of the frequency domain blocks        occupied by the measurement reference signal;    -   an index set of the frequency domain blocks that may be occupied        by the measurement reference signal is a subset of an index set        of the frequency domain blocks that may be occupied by the        control channel;    -   the index set of the frequency domain blocks that may be        occupied by the control channel includes all of the frequency        domain blocks in the symbol; and    -   the index set of the frequency domain blocks occupied by the        control channel and the index set of the frequency domain block        occupied by the measurement reference signal are set with the        receiving end.

In an embodiment of the present disclosure, the frequency domain blockof the measurement reference signal in one symbol is larger than thefrequency domain block corresponding to the control channel;

The frequency domain block of the measurement reference signal in onesymbol includes a frequency domain block corresponding to NF controlchannels, where NF is an integer greater than 1.

In an embodiment of the present disclosure, the configurationinformation satisfies at least one of the following features:

-   -   one measurement reference signal port occupies a resource in NR        symbols in the first set of time domain symbols, 1≤NR≤M;    -   one measurement reference signal resource occupies a resource in        NR1 symbols in the first set of time domain symbols, 1≤NR1≤M;    -   the control channel occupies MC symbols in the second set of        time domain symbols in which the measurement reference signal is        located, 1≤MC≤MCT, where the set of time domain symbols in which        the measurement reference signal is located includes MCT time        domain symbols;    -   the one measurement reference signal resource occupies a        resource in the first set of time domain symbols, and does not        occupy a resource outside the first set of time domain symbols;    -   the one measurement reference signal port occupies a part of the        frequency domain block resource in the time domain symbol; and    -   the control signaling is transmitted in the control channel.

In a specific embodiment, NR is 1 and NR1 is 1.

In an embodiment of the present disclosure, one measurement referencesignal resource occupies resources in the first set of time domainsymbols and a resource outside the first set of time domain symbols; and

-   -   one measurement reference signal port occupies resources in the        first set of time domain symbols and a resource outside the        first set of time domain symbols.

In an embodiment of the present disclosure, the second set of timedomain symbols satisfies at least one of the following features:

-   -   the second set of time domain symbols is at an end position of a        downlink transmission domain of a first time unit;    -   x time domain symbols are between a start symbol of the second        set of time domain symbols and a start position of the first        time unit, where x is a natural number greater than 0; and    -   the time domain symbols in the second set of time domain symbols        are consecutive;    -   wherein the first time unit is a time unit where the second set        of time domain symbols is located.

In an embodiment of the present disclosure, the first set of time domainsymbols and/or the second set of time domain symbols appear in a settime unit, and the measurement reference signal cannot be transmitted onthe first set of time domain symbols in an unset time unit, or thecontrol channel cannot be transmitted on the second set of time domainsymbols in an unset time unit.

The index of the set time unit is sent to the receiving end bysignaling.

In an embodiment of the present disclosure, in the configurationinformation of the measurement reference signal, the index range of thetime domain symbols occupied by the measurement reference signalincludes one or more beginning time domain symbols of the second timeunit;

-   -   wherein the second time unit is a time unit for transmitting the        measurement reference signal.

In an embodiment of the present disclosure, the set of time domainsymbols occupied by the control channel in the second set of time domainsymbols is a subset of the second set of time domain symbols.

In an embodiment of the present disclosure, the control channelsatisfies at least one of the following features:

-   -   a minimum mapping unit of the control channel is a comb-shaped        frequency domain block in the one symbol; and    -   a minimum mapping unit of the control channel is a subcarrier        group in a comb-shaped frequency domain block in the one symbol,        wherein one comb-shaped frequency domain block includes more        than one subcarrier group.

In an embodiment of the present disclosure, one time domain symbol isone OFDM symbol;

-   -   the control channel is a downlink control channel;    -   the time unit is one subframe; and    -   the control signaling is proprietary control signaling.

The method for transmitting a signal according to an embodiment of thepresent disclosure is further described in detail below in conjunctionwith a specific application scenario.

Embodiment 1

In this embodiment, the measurement reference signal is transmitted onthe first set of time domain symbols on which the control channel islocated, wherein the first set of time domain symbols is in one or moresymbols at the beginning of the time unit in which the first set of timedomain symbols is located.

Specifically, as shown in FIG. 1a to FIG. 1d , in one subframe (i.e.,one time unit as described above), the first two symbols are thetransmission domain of the downlink control channel. That is, in thiscase, the two symbols (the symbol 0 and the symbol 1 as shown in thefigure) constitute the above-mentioned set of time domain symbols.

As shown in FIG. 1a to FIG. 1d , the measurement reference signal is onthe set of time domain symbols where the control channel is located. Thetransmission structure in the one time unit (i.e., the above time unit)in FIGS. 1a to 1d is only an example, and does not exclude othertransmission structures. The transmission structure includesconstituting components in one time unit which may be downlink control,downlink data, GP (Guard Interval), uplink data, and uplink control.

As shown in FIG. 1a , the transmission of the CSI-RS (i.e., theabove-mentioned measurement reference signal) requires notificationthrough dynamic signaling. In particular, when a radio frequency beam ofother control information (hereinafter referred to as second controlinformation, where the second control information may include aplurality of pieces of control signaling) is different from a radiofrequency beam for notifying the CSI-RS control signaling (hereinafterreferred to as first control information), time-division multiplexing ofthe first control information and the second first control informationis needed, or even only for the first control information, an additionalone OFDM symbol needs to be used. In the case of a large bandwidth, thefirst control information or the second control information cannotoccupy the whole bandwidth, or the first control information and a partof control signaling of the second control information cannot occupy thewhole bandwidth. The CSI-RS reference signal can be transmitted on thesymbol for notifying the first control information. As shown in FIG. 1a, the symbol 1 includes three frequency domain resource blocks. Thedownlink control information of the first control information (the DCIshown in the figure) occupies the middle frequency domain block, and theother two frequency domain blocks are used to transmit the CSI-RS. InFIG. 1a , the transmission beams of OFDM0 and OFDM1 are different. Ifthe CSI-RS and the first control signaling in FIG. 2 are transmitted ondifferent symbols, the first control signaling has to be transmittedwith the radio frequency beam 2 on one symbol, and the CSI-RS signalalso needs to be transmitted using one symbol with the radio frequencybeam 2. The first control signaling cannot occupy all the resources onthe OFDM1, there is no downlink data under the radio frequency beam 2that the user can schedule, and the CSI-RS cannot occupy all theresources on the OFDM2, which may cause resource waste. Therefore, themethod of FIG. 1a has higher resource utilization than the method ofFIG. 2. Moreover, the transmission mode of FIG. 1a can provide moreCSI-RS processing delay to the terminal than that of FIG. 2, so that theterminal can report CSI based on the CSI-RS measurement result in thecurrent time unit. However, in order to further reduce the switchingtimes of radio frequency beams for the base station, as shown in FIG. 1b, the CSI-RS and the notification of the first control information maybe placed in the OFDM0, and the second control information may be placedin the OFDM1. Then, if the radio frequency beams of the second controlinformation and the downlink data corresponding to the second controlinformation are the same, the number of times for the base station toswitch radio frequency beams can be reduced. However, compared with FIG.1b , in FIG. 1a , when the radio frequency beam for the downlink controlinformation is different from the radio frequency beam for thecorresponding downlink data, processing delay may be prolonged for theterminal. So, FIG. 1a and FIG. 1b both have advantages anddisadvantages. As an example implementation of the terminal, the twosolutions are not excluded in this embodiment.

If it is still necessary to measure other beam directions, and the otherbeam directions require different radio frequency beams from the radiofrequency beams 2, it is necessary to transmit a measurement referencesignal on a symbol outside the set of time domain symbols, as shown inFIG. 1c . If the beam under the radio frequency beam 3 needs to bemeasured, the remaining CSI-RS signals have to be transmitted on thesymbol 2. Or, the mixed beam 1 is measured under the radio frequencybeam 2 in OFDM1, and the mixed beam under the radio frequency beam 2needs to be measured on the OFDM2. 2. Or, as shown in FIG. 1d , theCSI-RS only occupies a part of the bandwidth on the OFDM2. Preferably,in the OFDM2, the CSI-RS occupies the part of the frequency bandoccupied by the DCI in the OFDM1. That is, one CSI-RS port occupies partof the bandwidth of the OFDM1 (such as the frequency domain blocks 1 and3 in FIG. 1d ) and the part of the bandwidth in OFDM2 (such as thefrequency domain block 2 in FIG. 1d ), the union of the two bandwidthsconstitutes the system bandwidth.

In the above embodiment, the radio frequency beam direction is only anexample, and when there are a plurality of radio frequency links,different mixed beams can be formed by summing weighted basebands. Forone symbol, the major concern is the radio frequency beam direction ofthe radio frequency link, since one radio frequency link on one symbolcan correspond to one radio frequency beam direction in one fullbandwidth.

For the relationship between the measurement reference port and the setof time domain symbols of the control channel, a first implementation isthat one CSI-RS port occupies part or all of the symbols in the set oftime domain symbols, and does not occupy a resource on a symbol outsidethe set of time domain symbols. That is, one of the measurementreference signal ports occupies a resource in the NR symbols in the setof time domain symbols, 1≤NR≤M, and one measurement reference signalport in FIG. 1a occupies only the resource of one symbol. Thisembodiment does not exclude that one measurement reference port occupiesresources in more than one symbol, that is, one CSI-RS port in FIG. 1acan occupy resources in two symbols (i.e., OFDM0 and OFDM1). For therelationship between the measurement reference port and the set of timedomain symbols of the control channel, a second implementation is aCSI-RS port occupies a part or all of the symbols in the set of timedomain symbols, and also occupies a symbol outside the set of timedomain symbols. As shown in FIGS. 1c to 1d , one CSI-RS port occupiesresources in the set of time domain symbols {symbol 0, symbol 1}, andmay also occupy a resource in symbol 2.

A first implementation of a relationship between one CSI-RS resource anda set of time domain symbols of the control channel is that one CSI-RSresource only occupies all or part of the symbols in the set of timedomain symbols, and does not occupy a symbol outside the set of timedomain symbols. As shown in FIG. 1a to FIG. 1b , one CSI-RS resourceonly occupies resources in the set of time domain symbols {symbol 0,symbol 1}, and does not occupy a symbol outside the set of time domainsymbols.

A first implementation of a relationship between one CSI-RS resource anda set of time domain symbols of the control channel is that one CSI-RSresource occupies all or part of the symbols in the set of time domainsymbols, and also occupies a symbol outside the set of domain symbols.As shown in FIG. 1c to FIG. 1d , one CSI-RS resource occupies a resourcein the set of time domain symbols {symbol 0, symbol 1}, and alsooccupies a resource in a symbol outside the set of time domain symbols,such as the resource in the symbol 2.

In the above implementations, one CSI-RS resource includes one or moreCSI-RS ports. Preferably, one CSI-RS resource corresponds to one pieceof CSI-RS configuration information. The set of time domain symbols isthe set of time domain symbols where the control channel is located,that is, a set constituted by {symbol 0, symbol 1} in FIGS. 1a to 1 d.

In FIGS. 1a to 1d , in the set of time domain symbols, the first controlsignaling and the CSI-RS port (or the CSI-RS resource) occupy the sameset of symbols. However, the present embodiment does not exclude thatthe symbol occupied by the first control signaling is a subset of theset of symbols occupied by the CSI-RS. As shown in FIG. 1e , the firstcontrol signaling is in OFDM0, but the CSI-RS may occupy resources onthe symbols {OFDM0, OFDM1}. However, the present embodiment does notexclude that the symbol occupied by the CSI-RS in the set of time domainsymbols is a subset of the symbols occupied by the first controlsignaling in the set of time domain symbols, as shown in FIG. 1 f.

As a first implementation, symbols included in the set of time domainsymbols is of a time unit level. That is, the symbols included in theset of time domain symbols are the symbols for transmitting all controlinformation in that time unit. For example, for symbols occupied byPDCCH (downlink control channel), the PDCCH is used to transmit all ofthe control information needs to be transmitted in that time unit, orthe control information transmitted with the PDCCH includes controlinformation for multiple users. The number of symbols included in thePDCCH in each time units may be notified through a PCFICH-likeinformation. The time units are variable, or the symbols in the set ofsymbols in each time unit are semi-statically configured as invariablefor a period of time. When the symbols in the set of symbols need to bechanged, it may be notified through signaling. The signaling may bedynamic signaling, or may be semi-static signaling.

As a second implementation, symbols included in the set of time domainsymbols is UE-Specific, that is, the number of OFDM symbols included inthe set of time domain symbols is UE-Specific. In the same time unit,the set of time domain symbols for user 1 includes only OFDM0, and theset of time domain symbols corresponding to user 2 includes symbol 0 andsymbol 1. For example, through signaling configuration, the blinddetection range of the control channel of the user 1 is symbol 0, andthe blind detection range of the control channel of the user 2 is thesymbol 0 and the symbol 1.

In the above implementations, the CSI-RS and the control channel arefrequency division multiplexed. One way for frequency divisionmultiplexing is to include consecutive subcarriers in each frequencydomain block as shown in FIGS. 1a to 1d . A second way for frequencydivision multiplexing is a comb-shaped structure, that is, the frequencydomain blocks occupy the subcarriers alternately. As shown in FIG. 3a ,the subcarriers in one symbol are divided into a frequency domain block1 and a frequency domain block 2 in a combed polling manner, thefrequency domain block 1 is used for the control channel, and thefrequency domain block 2 is used for the measurement reference signal.Alternatively, as shown in FIG. 3b , the subcarriers in one symbol aredivided into MF frequency domain blocks in a combed polling manner,preferably MF=12n, 16n, where n is an integer greater than or equalto 1. However, this embodiment does not exclude other values of MF. Eachof the control signaling (like DCI in LTE) may occupy one or morecomb-shaped frequency domain blocks, each of the measurement referencesignal ports may occupy one frequency domain block, and one measurementreference signal resource may include multiple ports, and thus onemeasurement reference signal resource can occupy a plurality ofcomb-shaped frequency domain blocks, and different ports in onemeasurement signal resource can be multiplexed by frequency divisionplus code division manners. In order for the terminal to detect theuniformity of the control channels, it is preferred that themultiplexing modes of the different control signaling in the controlchannels also adopt a combed structure. That is, as shown in FIG. 3b ,each symbol in the control channel (such as the symbol 0 and the symbol1 in FIGS. 1a to 1d ) is divided into MF frequency domain blocks in acombed multiplexing manner, and a minimum resource block (such as REG(resource element group resource group) in LTE) that is used for controlsignaling mapping is a frequency domain block. However, one controlsignaling can also occupy multiple frequency domain blocks. Or, when thesystem bandwidth is large, one frequency domain block may be dividedinto multiple segments. As shown in FIG. 3b , all the subcarriers in thefirst frequency domain block are divided into four resource groups, andone resource group is one REG, in which resources in one resource grouphave an interval of MF subcarriers, or resources in one resource grouphave an interval of x1×MF subcarriers, where x1 is a positive integer,preferably x1 is the number of resource groups included in one frequencydomain block. The terminal first searches for control signaling in thesearch space. Preferably, the union of different users' search spacescovers the full system bandwidth of the symbol. After the terminalsearches for the first control information, the first controlinformation informs the index of the frequency block occupied by themeasurement reference signal, or the first control information simplyindicates that the measurement reference signal is sent in the set oftime domain symbols. The index of the frequency domain block occupied bythe measurement reference signal is fixed, and/or the symbol occupied bythe measurement reference signal in the set of time domain symbols isfixed, or the time domain symbol occupied by the measurement referencesignal is obtained according to the time domain symbol where the firstcontrol information is located, and the first control information onlyneeds to configure information such as the number of ports in onemeasurement reference resource. When a frequency domain block is furtherdivided into multiple resource groups, in one manner, the measurementreference signal occupies all resources in one frequency domain block,and in another manner, the measurement reference signal occupies someresource groups in one frequency domain block. The index of the occupiedgroup is fixed or indicated by control signaling. The advantage of thecombed frequency division multiplexing method for the frequency domainblock lies in that when the reference signal and the control channel arefrequency division multiplexed, the measurement reference signal can betransmitted in full bandwidth.

In the above implementation, the control channel (including the firstcontrol information and the second control information) and themeasurement reference signal in one symbol may be frequency divisionmultiplexed. However, since the control channel and the measurementreference signal are sent on demand, in a first implementation, thefrequency domain block that the control channel can occupy is allfrequency domain blocks in one symbol, the first control informationindicates the frequency domain block occupied by the measurementreference signal, or the index of the frequency domain block occupied bythe measurement reference signal is fixed. That is, the set of frequencydomain blocks occupied by the measurement reference signal is a subsetof the frequency domain blocks occupied by the control channel. In asecond implementation of this embodiment, the frequency domain blocksthat the control channel can occupy is a part of the frequency domainblocks, and the frequency domain blocks that the measurement referencesignal can occupy is also a part of the frequency domain blocks, and thetwo sets frequency domain blocks may have intersection, but there is nosubset relationship between the two. Even the intersection may be empty.

In this embodiment, the first control signaling sends configurationinformation of the measurement reference signal, where the configurationinformation includes at least one of the following: an index of a symboloccupied by the measurement reference signal in the set of time domainsymbols, an index of a frequency domain block in the symbol; informationindicating whether to transmit the measurement reference signal in thesymbol; information indicating a transmission pattern of the symbol inthe frequency domain block; and information indicating whether to reportchannel state information (CSI) and to report the time-frequencyresource where the CSI is located. The transmission pattern includes atransmission density, a multiplexing manner of the ports and so on.Specifically, the transmission density includes a transmission densityin a frequency domain block, or an index of the resource group occupiedin a frequency domain block. The multiplexing manner of the plurality ofports includes the length of code division multiplexing, the manner oftime division/frequency division/code division multiplexing.

In this embodiment, one or more of the following information of themeasurement reference signal is set (or agreed) by the transmitting endand the receiving end: an index of a symbol occupied by the measurementreference signal in the set of time domain symbols, an index of afrequency domain block in the symbol; information indicating whether totransmit the measurement reference signal in the symbol; informationindicating a transmission pattern of the symbol in the frequency domainblock; and information indicating whether to report channel stateinformation (CSI) and to report the time-frequency resource where theCSI is located. The transmission pattern includes a transmissiondensity, a multiplexing manner of the ports and so on. Specifically, thetransmission density includes a transmission density in a frequencydomain block, or an index of the resource group occupied in a frequencydomain block. The multiplexing manner of the plurality of ports includesthe length of code division multiplexing, and the manner of timedivision/frequency division/code division multiplexing.

In the above embodiment, the measurement reference signal may also be aBeam Reference Signal (BRS), a Beam Refinement Reference Signal (BRRS),and a Channel Measurement Reference Signal (CSI-RS), or other equivalentnames. In general, the measurement reference signals is use formeasuring a channel state, where the channel state includes measurementof a beam state, which do not constitute an undue limitation to thepresent disclosure.

The one time unit may be one subframe or an interval, and one intervalmay include one or more subframes.

In this embodiment, the one symbol may be one OFDM symbol.

In this embodiment, the sending end may be a base station, and thereceiving end may be a terminal. However, this embodiment does notexclude other implementation entities.

Embodiment 2

In the embodiment, the control channel is sent in a second set of timedomain symbols (hereinafter referred to as a time domain symbol) wherethe measurement reference signal is located, and the set of time domainsymbols is not at the beginning of a time unit, or the index of thestart symbol of the set of time domain symbols is not 0, that is, theinterval between the start symbol of the set of time domain symbols andthe start position of the time unit is x symbols, where x is an integergreater than 0, or the set of time domain symbols includes, in additionto the time domain symbol where the downlink control domain is located,also includes other time domain symbols.

As shown in FIGS. 4a to 4d , FIGS. 4a to 4d show the locations of theset of time domain symbols. In the figures, in the set of time domainsymbols includes 2 symbols, which is only an example, and does notexclude other numbers of symbols. The symbols in the set of time domainsymbols in FIG. 4a include symbols immediately after the downlinkcontrol domain; the start symbol in the set of time domain symbols andthe end symbol of downlink control domain in FIG. 4b are separated byseveral symbols, such as {symbol 5, symbol 6}; the set of time domainsymbols in FIG. 4c includes a time domain symbol at an end position of adownlink transmission domain in a time unit, such as symbols {10, 11};or the set of time domain symbols is located at the end position of atime unit, as shown in FIG. 4d , the set of symbols consists of {symbol12, symbol 13}.

Further, the set of time domain symbols is only in the configured timeunit. As shown in FIG. 4e , it may be configured by signaling that ameasurement reference signal may be transmitted in the set of timedomain symbols in the n-th time unit to the (n+T)-th time unit. Whetherto transmit a measurement reference signal is controlled by the basestation. If a measurement reference signal is transmitted, the basestation will send first control information. Then, the terminal mayfirstly detect the first control information on the time units n˜n+T. Ifthe first control information is detected, the measurement referencesignal may be then detected, and the terminal may perform rate matchingbased on the detected first control information. In FIG. 4a to FIG. 4d ,a first manner is that the terminal needs to search the control channelin both of the downlink control domain and the set of time domainsymbols. A second manner is that the terminal detects only one of thedownlink control domain and the set of time domain symbols, preferablydetects the set of time domain symbols and the terminal does not need todetect the control channel in the downlink control domain. A thirdmanner is configuring the terminal to detect both of the downlinkcontrol domain and the set of time domain symbols, or to detect only oneof them. That is, the control signaling and the measurement referencesignal may be multiplexed in the set of time domain symbols from then-th time unit to the (n+T)th time unit, and in other time units, nosuch multiplexing exists. Or, such time units appear periodically over atime period. In a time unit which is not set (or designated), theterminal does not detect the control channel in a set of time domainsymbols outside the control channel domain, wherein the set of timedomain symbols is the time domain symbols as shown in FIGS. 4a -4 d.

In this embodiment, preferably, the control signaling transmitted in thetime domain symbol is common control signaling, and all terminals mayknow that the measurement reference signal is transmitted on the timedomain symbols. Of course, if the configuration of these sets of timedomain symbols is UE-Specific, then such common control signaling willonly be detected by the notified terminal. However, if the configurationof the set of time domain symbols is common, the terminal that does notneed to measure these measurement reference signals can perform ratematching based on the obtained common control signaling. Of course, theabove control signaling may also be UE-Specific. For example, in thetime unit n˜the time unit n+T, the terminal detects the controlsignaling of the downlink control domain, and also detects the controlsignaling in the time domain symbol, and obtains the number of timedomain symbols occupied by the measurement reference signal, or theindex of the time domain symbol, so as to perform rate matching. Forexample, the terminal 1 detects that the control signaling detected atthe downlink control domain of the time unit in FIG. 1a indicates thetime and frequency resource occupied by downlink data information, suchas how many PRBs are occupied, and one PRB starts from the symbol 2.Then, the terminal further detects whether a measurement referencesignal has been transmitted on the symbols 2 and 3 through the controlsignaling in the symbols 2 and 3. If the first control information isdetected, and rate matching is performed according to the transmissionof the measurement reference signal indicated by the first controlinformation, it is considered that the start symbol of the downlink datadomain is a symbol 4, or the configuration information of themeasurement reference signal indicates the symbol occupied by themeasurement reference signal, such as all of the measurement referencesignals only occupy resources in the symbol 2, and the terminal mayconsider the start symbol of the downlink data domain is the symbol 3.Alternatively, if the measurement reference signal occupies resources inthe symbols 2 and 3, the frequency part not occupied is considered fordata transmission, and the data transmission rate matching is performed.Alternatively, the resources except for the resources for transmittingthe control signaling and the measurement reference signal in thesymbols 2 and 3 are considered as for data transmission. Alternatively,for such time units, the symbol for the measurement reference signal isconsidered not for data transmission, and in this case, it is necessaryto notify an index of symbol that needs to be chiseled. In relevantcontrol information corresponding to the data transmission, the range ofthe indices of the symbols to be chiseled is larger than the range ofthe indices of the chiseled symbols in a general time unit. The generaltime unit is a time unit that has no such set of time domain symbols.For example, in a general time unit, 2 bits are needed for chiseling asymbol, while in a time unit having the set of time domain symbols, 3bits are needed for chiseling a symbol. So, the number of bits fornotifying time domain resources is determined according to the type ofthe time unit. The first time unit type is a unit having the set of timedomain symbols, and the second time unit type is a unit having no suchset of time domain symbols.

The minimum resource unit of one control signaling of the downlinkcontrol domain and the minimum resource unit of one control signaling inthe set of time domain symbols in FIG. 4a to FIG. 4d may be the same ordifferent. Preferably, the minimum resource unit of the controlsignaling in the set of time domain symbols may be one of the frequencydomain blocks in the comb-shaped structure, as shown in FIGS. 3a to 3b ,or the minimum resource unit is one resource group of one frequencydomain block, as shown in FIG. 3b . The minimum resource unit of onecontrol signaling in the downlink control domain may be obtained fromother division manner, that is, obtained in a way other than in thecomb-shaped structure, to obtain a different minimum resource unit.

For the set of time domain symbols, as shown in FIGS. 5a-5b , the timedomain symbols may also include all downlink transmission domains of onetime unit, and even downlink transmission domains of a plurality of timeunits. In FIGS. 5a-5b , a first implementation is that the terminal onlydetects control signaling for notifying the configuration information ofthe measurement reference signal on each symbol of the set of timedomain symbols. A second implementation is detecting a general downlinkcontrol signaling on the start one or more OFDM symbols by the terminal,where the general downlink control signaling includes configurationinformation for notifying the measurement reference signal and datascheduling information, and detecting the configuration information fornotifying the measurement reference signal on a symbol after the startone or more symbols, as shown in FIG. 5c . In this case, the measurementreference signal may be or may not be sent on the configured time domainsymbol. When no measurement reference signal is sent, the schedulinginformation may be sent in the previous downlink control domain, so thatthe time unit can be used to send downlink data information. Or, in thetime unit shown in FIG. 5b , the downlink control signaling may also besent. Then, the time unit sets where the time domain symbols are locatedmay preferably be non-consecutive. For example, in the time unit n˜thetime unit n+T, one time unit in each T1 time units is of the structureas shown in FIG. 4a to FIG. 4d , or of the structure as shown in FIG. 5a˜FIG. 5c . Other time units have no such set of time domain symbols,thereby reducing the complexity in detecting control information for theterminal.

In the set of time domain symbols, when the set of time domain symbolsis a symbol outside the downlink control domain, a first manner is thatthe terminal detects the first control information on each symbol in theset of time domain symbols, and the first control information can besent on each symbol in the set of time domain symbols. A second manneris that the terminal detects the control channel on each symbol in theset of time domain symbols, and the first control information is sent onpart of the symbols in the set of time domain symbols. A third manner isthat the terminal detects the control channel on part of the symbols inthe set of time domain symbols, wherein the part of the symbols areconfigured or agreed with the base station. As shown in FIG. 5d , it isset that the control signaling is sent on the even-numbered symbols, andthe terminal only needs to detect the control channel on theeven-numbered symbols. For example, the terminal 1 detects the firstcontrol information on the symbol 2, and the first control informationmay indicate indices of symbols for the measurement reference signal ofthe terminal 1 in the set of time domain symbols (a set of {symbol0˜symbol 13}). That is, in this case, the measurement reference signalof the terminal 1 may occupy any resource in the symbol 0˜the symbol 13.

In the embodiment, the multiplexing manner of the measurement referencesignal and the first control information in the time domain symbol maybe that in the manner of Embodiment 1, i.e. frequency divisionmultiplexing. However, different from the embodiment 1, the controlinformation transmitted in the set of time domain symbols may bedifferent. In a first implementation, only the first control informationis in the set of time domain symbols, where the first controlinformation is for configuring the resource of the measurement referencesignal. In a second implementation, in the set of time domain signals,in addition to transmitting the first control information, the secondcontrol information may be transmitted. This is because there may bemore opportunities for beam switching, and the measurement referencesignal and the second control information may be transmitted on theswitching sessions of the beams. As shown in FIG. 4f , when the radiofrequency beam of the downlink control domain is a beam 1, and the radiofrequency beam of the set of time domain symbols (the set of {symbol 2,symbol 3}) is a beam 2, the first control information may be sent to theuser 2 on the symbol 2 and the symbol 3, to instruct the user 2 toprocess the measurement reference signal, and further, the secondcontrol information is sent to the user 1 on the symbols 2 and 3, wherethe second measurement reference information includes controlinformation other than the measurement reference signal.

In this embodiment, when the set of time domain symbols is relativelylarge, in order to reduce the complexity of detecting the controlchannel in the set of time domain symbols for the terminal, thedetection range of the terminal may be further determined according tothe logical beam in which the terminal resides. The range of detectionis different for different logical beam. For example, if the logicalbeam is 0, only the control information needs to be detected on onesymbol in the set of time domain symbols. For example, if the logicalbeam is 1, it is only necessary to detect the control information on twosymbols in the set of time domain symbols. Specifically, for example,when the set of time domain symbols includes 2 symbols, and the totalnumber of the logical beams is 4, the following table can beestablished. In this way, the detection range changes as the logicalbeams change. The time domain symbol 0 is the start symbol of the set oftime domain symbols. That is, the numbers of the time domain symbols inthe table 1 is the logic numbers of the set of time domain symbols.Specifically, as shown in FIG. 4a , the set of time domain symbols iscomposed of {symbol 2, symbol 3}, and symbol 0 in Table 1 corresponds tosymbol 2.

TABLE 1 Logical Beam Detection Range of Control Number Channel (TimeDomain Symbol) 0, 1 0 2, 3 0, 1

If the downlink control domain is not included in the set of time domainsymbols, the terminal needs to be notified to detect the control channelin the downlink control domain and the set of time domain symbols. Asshown in FIG. 4a to FIG. 4d , one implementation is that the terminaldetects the control channel on all symbols of downlink control domain,and the detection range of the control channel may be determinedaccording to the logical beam indices in the set of time domain symbols.

Embodiment 3

In the Embodiment 1 and Embodiment 2, the first control informationindicating the measurement reference signal and the measurementreference signal are in the same time unit. In this embodiment, thefirst control information and the measurement reference signal may notbe at the same time unit. Or the first control information is high layerconfiguration information. Only the measurement reference signal canoccupy the time domain symbol where the downlink control channel domainis located.

As shown in FIG. 6, in the i-th time unit, the base station sendsconfiguration information of the measurement reference signal throughthe control signaling (which may be dynamic control signaling orsemi-static control signaling), but the measurement reference signal issent at the (i+T1)-th time unit, where T1 is an integer greater than 0,wherein the measurement reference signal can occupy a resource in asymbol of a downlink control domain in the (i+T1)-th time unit.

However, in this embodiment, the control signaling in the i-th time unitmay indicate the configuration information of the measurement referencesignal periodically transmitted, or the configuration information of themeasurement reference signal periodically sent in a period of time,where the measurement reference signal may occupy resources in the timedomain symbol of the downlink control domain.

Embodiment 4

In this embodiment, the demodulation reference signal of the downlinkcontrol domain can be used as the measurement reference signal, and theterminal reports the CSI condition according to the reception conditionof the demodulation reference signal. The terminal and the base stationset the number of demodulation reference signal ports of the controlchannel, and preferably in this case, there is a correspondencerelationship between the demodulation reference signal port and thelogical beam, for example, one-to-one correspondence relationship.However, this embodiment does not exclude other correspondencesrelationship.

In a first implementation of the present embodiment, the base stationtransmits a demodulation reference signal port according torequirements, and the terminal measures the performance of eachdemodulation reference signal in each time unit of one measurementperiod. As shown in FIG. 7, if the number of the demodulation referencesignal ports of the control channel is 16 (but the base stationtransmits one or more of the 16 ports in a time unit according torequirements), the terminal feeds back a matrix of 16×T, where the (i,j)-th element in the matrix represents the reception condition of thei-th demodulation reference signal port in the j-th time unit. Simply,each element is only 1 bit, 0 means that the reception quality of thei-th demodulation reference signal port in the j-th time unit is lowerthan a predetermined value, and 1 means that the reception quality ofthe i-th demodulation reference signal port in the j-th time unitexceeds the predetermined value. The base station considers the actualtransmission condition of the demodulation reference signal port in eachtime unit, to obtain the link status to the terminal, so that thesubsequent beam training or the data scheduling can be assisted with thefeedback situation.

In a second implementation of this embodiment, the terminal feeds backthe number of times received by each demodulation signal port in onemeasurement period. As shown in FIG. 7, the terminal feeds back a16-dimensional vector value in one measurement period. The i-th value inthe vector indicates the number of times of the i-th demodulationreference signal port exceeds the predetermined threshold in T timeunits.

However, in this embodiment, the terminal may further simplify the twofeedback manners described above, for example, only feeding back amatrix or a vector of a predetermined dimension. The measurement resultmay also be a result obtained by combining the control channeldemodulation reference signal and other reference signals.

Embodiment 5

In this embodiment, whether the measurement reference signal and thecontrol channel can be transmitted in the same time domain symbol isconfigured. If the configuration is enabled, the measurement referencesignal and the control channel can be sent in the same time domainsymbol, if the configuration is not enabled, the measurement referencesignal and the control channel may not be transmitted in the same timedomain symbol.

This configuration can be Cell-Specific, such as through system messageconfiguration, high layer configuration, or dynamic signalingconfiguration.

Embodiment 6

In this example, the symbols in the downlink control domain are dividedinto different frequency domain blocks in the comb-shaped structure.Preferably, one frequency domain block can be further divided intomultiple resource groups, as shown in FIG. 8. One resource group is aminimum resource unit for control signaling mapping.

Preferably, in an implementation of this embodiment, a base station mayonly send a control channel in a frequency domain block group in onesymbol, wherein the one frequency domain block group includes at leastone frequency domain block. For example, the frequency domain blockoccupied by the control channel of one base station is obtainedaccording to the base station ID, so that the frequency domain blocksoccupied by different base stations may be different, thereby avoidinginterference of the control channels between cells. Moreover, thefrequency domain block resources occupied by one cell can be hopped.

Embodiment 7

In this embodiment, the measurement reference signal is configured tooccupy a frequency domain resource in the first set of time domainsymbols in which the control channel is located. The measurementreference signal is an uplink measurement reference signal, and thecontrol channel is an uplink control channel, that is, the uplinkcontrol channel and the uplink measurement reference signal may occupythe same time domain symbol.

As shown in FIG. 11a , the SRS (that is, the uplink measurementreference signal, which may be other equivalent names, such as U-RS,which does not affect the patent scope) and the PUCCH (i.e., the uplinkcontrol channel) occupy different PRB resources for frequency divisionmultiplexing.

Alternatively, dividing the uplink symbol of the predetermined bandwidthinto MFu1 frequency domain resources, and the SRS and the PUCCH mayoccupy different frequency domain resources, as shown in FIG. 11 b.

Alternatively, the SRS and the PUCCH may occupy the same time-frequencyresource, but the occupied code domain sequence is different, and thedifferent codes are either pseudo-orthogonal or orthogonal.

In FIGS. 11a-11b , an uplink symbol is taken as an example, and thisembodiment does not exclude the use of a similar method for a pluralityof time domain symbols.

In the present disclosure, the different logical beams may bedistinguished by one or more of the following resources: a beamresource, a time resource, a frequency domain resource, a sequenceresource, a port resource, and a sector resource.

Embodiment 8

In this embodiment, the measurement reference signal occupies resourcesoutside the predetermined frequency domain resource in the first set oftime domain symbols in which the control channel is located, wherein thepredetermined frequency domain resource is an area occupied by thecontrol channel. The resources occupied by the predetermined bandwidthmay be fixed, may be notified by a system message, may be configured byhigh layer signaling, or may be notified by dynamic control signaling.

As shown in FIG. 12, the downlink control channel occupies an area of apredetermined bandwidth of the previous one or more time domain symbols,and the measurement reference signal may be sent in other areas. If themeasurement reference signal is triggered to be sent on the time domainsymbols in the time unit, the measurement reference signals are sent onresources outside the predetermined frequency domain, and the resourcepattern occupied by the measurement reference signals outside thepredetermined frequency domain is predetermined or notified by thetrigger signaling.

FIG. 10 is a block diagram of a device for transmitting a signalaccording to an embodiment of the present disclosure. As shown in FIG.10, the apparatus includes a configuring unit 1001 and a transmittingunit 1002.

The configuring unit 1001 is configured to configure a measurementreference signal to occupy a frequency domain resource in a first set oftime domain symbols where a control channel is located.

The transmitting unit 1002 is configured to transmit configurationinformation of the measurement reference signal or the control channelthrough control signaling; and/or transmit the control channel in asecond set of time domain symbols where the measurement reference signalis located.

The set of time domain symbols includes M symbols, and M is a naturalnumber; the measurement reference signal is a measurement referencesignal port or a measurement reference signal resource, and themeasurement reference signal resource includes at least one measurementreference signal port.

The measurement reference signal is transmitted in the set N time units.

In the embodiment of the present disclosure, the configurationinformation includes at least one of the following information:

-   -   an index of a time domain symbol occupied by the measurement        reference signal in the first set of time domain symbols, an        index of a frequency domain block of the measurement reference        signal in the time domain symbol; information indicating whether        to transmit the measurement reference signal; information        indicating a transmission pattern of the measurement reference        signal in the frequency domain block; information indicating        whether to report channel state information (CSI) and to report        the time-frequency resource where the CSI is located;        configuration information of the first set of time domain        symbols; and configuration information of the second set of time        domain symbols.

One symbol includes MF frequency domain blocks, where MF is an integergreater than one.

In the embodiment of the present disclosure, at least one of thefollowing information of the measurement reference signal is set withthe receiving end: an index of a symbol occupied by the measurementreference signal in the first set of time domain symbols, an index of afrequency domain block of the measurement reference signal in the timedomain symbol; information indicating whether to transmit themeasurement reference signal; information indicating a transmissionpattern of the measurement reference signal in the frequency domainblock; and information indicating whether to report CSI and to reportthe time-frequency resource where the CSI is located.

In an embodiment of the present disclosure, in a time domain symbol, thecontrol channel and the measurement reference signal are frequencydivision multiplexed.

In an embodiment of the present disclosure, the frequency divisionmultiplexing satisfies at least one of the following features:

-   -   frequency division multiplexing of a combed structure is        employed;    -   a number of the frequency domain blocks occupied by the control        channel is greater than a number of the frequency domain blocks        occupied by the measurement reference signal;    -   an index set of the frequency domain blocks that may be occupied        by the measurement reference signal is a subset of an index set        of the frequency domain blocks that may be occupied by the        control channel;    -   the index set of the frequency domain blocks that may be        occupied by the control channel includes all of the frequency        domain blocks in the symbol; and    -   the index set of the frequency domain blocks occupied by the        control channel and the index set of the frequency domain block        occupied by the measurement reference signal are set with the        receiving end.

In an embodiment of the present disclosure, the frequency domain blockof the measurement reference signal in one symbol is larger than thefrequency domain block corresponding to the control channel;

The frequency domain block of the measurement reference signal in onesymbol includes a frequency domain block corresponding to NF controlchannels, where NF is an integer greater than 1.

In an embodiment of the present disclosure, the configurationinformation satisfies at least one of the following features:

-   -   one measurement reference signal port occupies a resource in NR        symbols in the first set of time domain symbols, 1≤NR≤M;    -   one measurement reference signal resource occupies a resource in        NR1 symbols in the first set of time domain symbols, 1≤NR1≤M;    -   the control channel occupies MC symbols in the second set of        time domain symbols in which the measurement reference signal is        located, 1≤MC≤MCT, where the set of time domain symbols in which        the measurement reference signal is located includes MCT time        domain symbols;    -   the one measurement reference signal resource occupies a        resource in the first set of time domain symbols, and does not        occupy a resource outside the first set of time domain symbols;    -   the one measurement reference signal port occupies a part of the        frequency domain block resource in the time domain symbol; and    -   the control signaling is transmitted in the control channel.

In a specific embodiment, NR is 1 and NR1 is 1.

In an embodiment of the present disclosure, one measurement referencesignal resource occupies resources in the first set of time domainsymbols and a resource outside the first set of time domain symbols; and

-   -   one measurement reference signal port occupies resources in the        first set of time domain symbols and a resource outside the        first set of time domain symbols.

In an embodiment of the present disclosure, the second set of timedomain symbols satisfies at least one of the following features:

-   -   the second set of time domain symbols is at an end position of a        downlink transmission domain of a first time unit;    -   x time domain symbols are between a start symbol of the second        set of time domain symbols and a start position of the first        time unit, where x is a natural number greater than 0; and    -   the time domain symbols in the second set of time domain symbols        are consecutive;    -   wherein the first time unit is a time unit where the second set        of time domain symbols is located.

In an embodiment of the present disclosure, the first set of time domainsymbols and/or the second set of time domain symbols appear in a settime unit, and the measurement reference signal cannot be transmitted onthe first set of time domain symbols in an unset time unit, or thecontrol channel cannot be transmitted on the second set of time domainsymbols in an unset time unit.

The index of the set time unit is sent to the receiving end bysignaling.

In an embodiment of the present disclosure, in the configurationinformation of the measurement reference signal, the index range of thetime domain symbols occupied by the measurement reference signalincludes one or more start time domain symbols of the second time unit;

-   -   wherein the second time unit is a time unit for transmitting the        measurement reference signal.

In this embodiment of the present disclosure, the set of time domainsymbols occupied by the control channel in the second set of time domainsymbols is a subset of the second set of time domain symbols.

In an embodiment of the present disclosure, the control channelsatisfies at least one of the following features:

-   -   a minimum mapping unit of the control channel is a comb-shaped        frequency domain block in the one symbol; and    -   a minimum mapping unit of the control channel is a subcarrier        group in a comb-shaped frequency domain block in the one symbol,        wherein one comb-shaped frequency domain block includes more        than one subcarrier group.

In an embodiment of the present disclosure, one time domain symbol isone OFDM symbol;

-   -   the control channel is a downlink control channel;    -   the time unit is one subframe; and    -   the control signaling is proprietary control signaling.

It will be understood by those skilled in the art that theimplementation functions of the units in the apparatus for transmittinga signal shown in FIG. 10 can be understood by referring to the relateddescription of the method for transmitting a signal. The functions ofthe respective units in the apparatus for transmitting a signal shown inFIG. 10 can be realized by a program running on the processor, or can berealized by a specific logic circuit.

An embodiment of the present disclosure further describes a storagemedium storing a computer program therein, and the computer program isconfigured to execute the method for transmitting a signal of theforegoing embodiments.

Those skilled in the art will appreciate that embodiments of the presentdisclosure can be provided as a method, a system, or a computer programproduct. Accordingly, the present disclosure can take the form of ahardware embodiment, a software embodiment, or a combination of softwareand hardware embodiment. Moreover, the present disclosure can take theform of a computer program product embodied on one or morecomputer-usable storage media (including but not limited to a diskstorage and an optical storage, etc.) including computer usable programcodes.

The present disclosure has been described with reference to flowchartsor block diagrams of a method, an apparatus (system), and a computerprogram product according to embodiments of the present disclosure. Itwill be understood that each step in the flowchart or each block in theblock diagram, and the combinations of the steps or blocks in theflowchart or block diagram may be implemented by computer programinstructions. These computer program instructions can be provided to aprocessor of a general purpose computer, a special purpose computer, anembedded processor, or other programmable data processing device toproduce a machine, such that instructions executed by a processor of acomputer or other programmable data processing device may produce anapparatus for implementing the function specified in one or more stepsin the flowchart or in one or more blocks in the block diagram.

The computer program instructions can also be stored in a computerreadable memory that can direct a computer or other programmable dataprocessing device to operate in a particular manner, such that theinstructions stored in the computer readable memory produce an articleof manufacture including an instruction apparatus. The apparatusimplements the functions specified in one or more steps of the flowchartor in one or more blocks of the block diagram.

The computer program instructions can also be loaded onto a computer orother programmable data processing device such that a series ofoperational steps are performed on a computer or other programmabledevice to produce computer-implemented processing, such that theinstructions executed on the computer or other programmable deviceprovide steps for implementing the function specified in one or moresteps in the flowchart or in one or more blocks in the block diagram.

The above is only the preferred embodiments of the present disclosureand is not intended to limit the scope of the present disclosure.

INDUSTRIAL APPLICABILITY

The present disclosure can solve the problem of waste of resourcescaused by signaling notification and reference signal time divisiontransmission when the channel measurement signal is dynamicallytriggered. In addition, the present disclosure can increase theprocessing time of the terminal processing the measurement referencesignal, so that the terminal can feed back the measurement resultquickly, and even can report a measurement result in the current timeunit. Moreover, the present disclosure can contemplate an applicationscenario: a resource pool of measurement reference signals is configuredin a high layer. However, since the measurement reference signal istransmitted on demand, in this case, the measurement reference signaltransmitted on demand in the resource pool of measurement referencesignals is notified. Thus, the present disclosure can realizetransmitting of the measurement reference signal on demand at thetransmitting end while effectively improving the resource utilization ofthe triggered measurement reference signal.

What is claimed is:
 1. A method for transmitting a measurement referencesignal, comprising: sending configuration information of a measurementreference signal by control signaling, wherein the configurationinformation satisfies the following features: configuring themeasurement reference signal to occupy a frequency domain resource in afirst set of time domain symbols in which a downlink control channel islocated; wherein the measurement reference signal is a Channel StateInformation-Reference Signal (CSI-RS); sending the measurement referencesignal according to the control signaling; wherein the first set of timedomain symbols comprise M time domain symbols, where M is a naturalnumber; the measurement reference signal is in a measurement referencesignal resource, and the measurement reference signal resource comprisesat least one measurement reference signal port; wherein in one timedomain symbol of the first set of time domain symbols, an intersectionbetween frequency resource blocks occupied by the measurement referencesignal and frequency resource blocks occupied by the downlink controlchannel is empty, and one resource block comprises consecutivesubcarriers; wherein the first set of time domain symbols in which thedownlink control channel is located are semi-statically configured. 2.The method according to claim 1, wherein the configuration informationcomprises at least one of: one or more indexes of one or more frequencydomain blocks of the measurement reference signal in one time domainsymbol, information indicating whether to report channel stateinformation (CSI), or information indicating time-frequency resourcewhere the CSI is located; wherein one symbol comprises MF frequencydomain blocks, where MF is an integer greater than one.
 3. The methodaccording to claim 1, wherein in one time domain symbol, the controlchannel and the measurement reference signal are frequency divisionmultiplexed.
 4. The method according to claim 1, wherein in a timedomain symbol, frequency division multiplexing of the control channeland the measurement reference signal comprises that the measurementreference signal occupies a resource block outside preset frequencydomain resource blocks in the first set of time domain symbols where thecontrol channel is located; wherein the preset frequency domain resourceblocks are areas including the control channel, and comprise one or moreof the resource blocks, wherein the preset frequency domain resourceblocks satisfy at least one of the following features: the presetfrequency domain resource blocks are fixed; the preset frequency domainresource blocks are notified by a system message; the preset frequencydomain resource blocks are configured by high layer signaling; thepreset frequency domain resource blocks are notified by dynamic controlsignaling.
 5. The method according to claim 1, wherein the method has atleast one of the following features: in a time domain symbol, a beam forthe measurement reference signal and a beam for the control channel arethe same; if beams for two signals and/or channels are different, thetwo signals and/or channels are time division multiplexed; beams for twosignals and/or channels in a time domain symbol are the same; the indexof time domain symbols for detecting a downlink control channel in astart time domain symbol set in a time unit is determined according toUE-specific control signaling, wherein the start time domain symbol setcomprises time domain symbols with index number 0 to index number B inthe time unit, wherein B is a non-negative integer which is smaller thanor equal to 3; the first set of time domain symbols are determinedaccording to a first high layer control signaling; the measurementreference signal occupies any number of fourteen time domain symbolscomprised in the second time unit; time domain symbols for detecting thedownlink control channel in individual time units are determinedaccording to a second high layer control signaling; the first set oftime domain symbols comprise M symbols in the second time unit; thefirst set of time domain symbols comprise the time domain symbols of thestart time domain symbol set in the second time unit.
 6. A device fortransmitting a measurement reference signal, comprising: a processor; amemory for storing instructions executable by the processor; wherein theprocessor is configured to perform the method according to claim
 1. 7. Amethod for receiving a measurement reference signal, comprising:receiving control signaling, wherein the control signaling comprisesconfiguration information of a measurement reference signal, and theconfiguration information satisfies the following features: configuringthe measurement reference signal to occupy a frequency domain resourcein a first set of time domain symbols in which a downlink controlchannel is located; wherein the measurement reference signal is aChannel State Information-Reference Signal (CSI-RS); and receiving themeasurement reference signal according to the control signaling; whereinthe first set of time domain symbols comprise M symbols, where M is anatural number; the measurement reference signal is in a measurementreference signal resource, and the measurement reference signal resourcecomprises at least one measurement reference signal port; wherein in onetime domain symbol of the first set of time domain symbols, anintersection between frequency resource blocks occupied by themeasurement reference signal and frequency resource blocks occupied bythe downlink control channel is empty, and one resource block comprisesconsecutive subcarriers; wherein the first set of time domain symbols inwhich the downlink control channel are semi-statically configured. 8.The method according to claim 7, wherein the configuration informationcomprises at least one of: an index of a frequency domain block of themeasurement reference signal in one time domain symbol, informationindicating whether to report channel state information (CSI), orinformation indicating time-frequency resource where the CSI is located;wherein one time domain symbol comprises MF frequency domain blocks,where MF is an integer greater than one.
 9. The method according toclaim 7, wherein in a time domain symbol, the control channel and themeasurement reference signal are frequency division multiplexed; whereinan intersection between resource blocks occupied by the measurementreference signal and the control channel is empty, and one resourceblock comprises consecutive subcarriers.
 10. The method according toclaim 7, wherein in a time domain symbol, frequency divisionmultiplexing of the control channel and the measurement reference signalcomprises that the measurement reference signal occupies resource blocksoutside preset frequency domain resource blocks in the first set of timedomain symbols where the control channel is located; wherein the presetfrequency domain resource blocks are areas including the controlchannel, and comprise one or more of the resource blocks; wherein thepreset frequency domain resource blocks satisfy at least one of thefollowing features: the preset frequency domain resource blocks arefixed; the preset frequency domain resource blocks are notified by asystem message; the preset frequency domain resource blocks areconfigured by high layer signaling; or the preset frequency domainresource block is notified by dynamic control signaling.
 11. The methodaccording to claim 7, wherein the method has at least one of thefollowing features: in a time domain symbol, a beam for the measurementreference signal and a beam for the control channel are the same; ifbeams for two signals and/or channels are different, the two signalsand/or channels are time division multiplexed; beams for two signalsand/or channels in a time domain symbol are the same; the index of timedomain symbols for detecting a downlink control channel in a start timedomain symbol set in a time unit is determined according to UE-specificcontrol signaling, wherein the start time domain symbol set comprisestime domain symbols with index number 0 to index number B in the timeunit, wherein B is a non-negative integer which is smaller than or equalto 3; time domain symbols for detecting the downlink control channel inindividual time units are determined according to a first high layercontrol signaling; the measurement reference signal occupies any symbolof fourteen time domain symbols comprised in the second time unit; thefirst set of time domain symbols comprise M symbols in the second timeunit; the first set of time domain symbols comprise the time domainsymbols of the start time domain symbol set in the second time unit; thefirst set of time domain symbols are determined according to a secondhigh layer control signaling.
 12. A device for receiving a measurementreference signal, comprising: a processor; a memory for storinginstructions executable by the processor; wherein the processor isconfigured to perform the method according to claim
 7. 13. A method fordetecting a downlink control channel, comprising at least one of:detecting a downlink control channel in a second set of time domainsymbols which are occupied by a measurement reference signal; ordetecting a downlink control channel in a second set of time domainsymbols, and determining indexes of time domain symbols including themeasurement reference signal in the second set of time domain symbolsaccording to a first control information; wherein the second set of timedomain symbols comprises M time domain symbols, and M is a naturalnumber; wherein the measurement reference signal is a Channel StateInformation-Reference Signal (CSI-RS); wherein in one time domain symbolof the second set of time domain symbols, an intersection betweenfrequency resource blocks occupied by the measurement reference signaland frequency resource blocks occupied by the downlink control channelis empty, and one resource block comprises consecutive subcarriers. 14.The method according to claim 13, wherein the second set of time domainsymbols satisfy at least one of the following features: there are x timedomain symbols between a start symbol of the second set of time domainsymbols and a start position of a time unit including the second set,where x is a natural number greater than or equal to 0; there are y timedomain symbols between an end symbol of the second set of time domainsymbols and an end position of a time unit including the second set,where y is a natural number greater than 0; the second set of timedomain symbols comprises M time domain symbols in a time unit; the timedomain symbols in the second set are consecutive; information about thesecond set of time domain symbols is obtained according to UE-Specificcontrol signaling; information about the second set of time domainsymbols is obtained according to common control signaling; the secondset of time domain symbols exist periodically; on a time symbol in thesecond set of time domain symbols which comprises the downlink controlchannel and the measurement reference signal, an intersection between aresource block occupied by the measurement reference signal and aresource block occupied by the downlink control channel is empty; or ona time symbol in the second set of time domain symbols which comprisesthe downlink control channel and the measurement reference signal, themeasurement reference signal occupies a frequency domain resource blockoutside preset frequency domain resource blocks, wherein the presetfrequency domain resource blocks are areas including the controlchannel, and comprise one or more of the resource blocks and the presetfrequency domain resource blocks satisfy at least one of the followingfeatures: the preset frequency domain resource blocks are fixed; thepreset frequency domain resource blocks are notified by a systemmessage; the preset frequency domain resource blocks are configured byhigh layer signaling; the preset frequency domain resource blocks arenotified by dynamic control signaling.
 15. The method according to claim13, wherein determining indexes of time domain symbols including themeasurement reference signal in the second set of time domain symbolsaccording to first control information, comprises at least one of:determining rate match information of a data channel according to thefirst control information; the first control information is commoncontrol information; not receiving the measurement reference signal on atime symbol in the second set of time domain symbols which does notincludes the measurement reference signal; receiving the measurementreference signal on a time symbol in the second set of time domainsymbols which includes the measurement reference signal; wherein therate match information comprises at least one of the followinginformation: the data channel does not occupy the time domain symboloccupied by the measurement reference signal; on a time domain symbolwhere the measurement reference signal and the downlink control channelare located, the data channel does not occupy a resource block occupiedby the measurement reference signal and does not occupy a resource blockoccupied by the downlink control channel; on a time domain symbol wherethe measurement reference signal is located, the data channel does notoccupy a resource block occupied by the measurement reference signal.16. The method according to claim 13, further comprising: receivingsecond signaling information, wherein the second signaling informationis used to notify indexes of time domain symbols which the data channelis not allowed to occupy.
 17. The method according to claim 13, whereinthe method is characterized in at least one of: the second set of timedomain symbols comprise all time domain symbols in a downlinktransmission domain in one or more time units; the downlink controlchannel is detected in even index time domain symbols in the second setof time domain symbols; the downlink control channel is detected in timedomain symbols of a subset of the second set of time domain symbols;information of indexes of time domain symbols where the downlink controlchannel is detected in the second set of time domain symbols isaccording to third signaling information; one downlink controlinformation occupies one time domain symbol in the second set of timedomain symbols; the second set of time domain symbols comprises morethan one detection occasion for the downlink control channel; a commondownlink control channel is detected in the second set of time domainsymbols.
 18. The method according to claim 13, wherein the method has atleast one of the following features: the downlink control channel isdetected in at least one of the downlink control domain and the secondset of time domain symbols; a beam for the downlink control channel inthe downlink control domain and a beam for the downlink control channelin the second set of time domain symbols are different; a minimummapping resource unit for the control channel in the downlink controldomain and a minimum resource mapping unit for the control channel inthe second set of time domain symbols are the same; each time domainsymbol in the second set of time domain symbols is a detection occasionof the control channel; a time domain symbol for detecting the downlinkcontrol channel is determined according to a logic beam index, whereinthere is a mapping relationship between the logic beam index and thetime domain symbol; wherein a gap between a start position of the secondset of time domain symbols and a start position of the time unit isgreater than zero, and a gap between a start position of the downlinkcontrol domain and the start position of the time unit is equal to zero.19. A device for detecting a downlink control channel, comprising: aprocessor; and a memory for storing instructions executable by theprocessor; wherein the processor is configured to perform the methodaccording to claim 13.